{"id":"https://openalex.org/W4281566362","doi":"https://doi.org/10.3390/computers11060084","title":"Improving Multi-View Camera Calibration Using Precise Location of Sphere Center Projection","display_name":"Improving Multi-View Camera Calibration Using Precise Location of Sphere Center Projection","publication_year":2022,"publication_date":"2022-05-24","ids":{"openalex":"https://openalex.org/W4281566362","doi":"https://doi.org/10.3390/computers11060084"},"language":"en","primary_location":{"id":"doi:10.3390/computers11060084","is_oa":true,"landing_page_url":"https://doi.org/10.3390/computers11060084","pdf_url":"https://www.mdpi.com/2073-431X/11/6/84/pdf?version=1653394816","source":{"id":"https://openalex.org/S4210228075","display_name":"Computers","issn_l":"2073-431X","issn":["2073-431X"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computers","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2073-431X/11/6/84/pdf?version=1653394816","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5024704748","display_name":"Alberto P\u00e9rez","orcid":"https://orcid.org/0000-0001-9059-0128"},"institutions":[{"id":"https://openalex.org/I4210134847","display_name":"Centro Tecnol\u00f3gico de Investigaci\u00f3n, Desarrollo e Innovaci\u00f3n en tecnolog\u00edas de la Informaci\u00f3n y las Comunicaciones (TIC)","ror":"https://ror.org/02s69db58","country_code":"ES","type":"nonprofit","lineage":["https://openalex.org/I4210134847"]},{"id":"https://openalex.org/I60053951","display_name":"Universitat Polit\u00e8cnica de Val\u00e8ncia","ror":"https://ror.org/01460j859","country_code":"ES","type":"education","lineage":["https://openalex.org/I60053951"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"Alberto J. Perez","raw_affiliation_strings":["Departamento de Inform\u00e1tica de Sistemas y Computadores (DISCA), Universidad Polit\u00e8cnica de Val\u00e8ncia, 46022 Valencia, Spain","Instituto Tecnol\u00f3gico de Inform\u00e1tica (ITI), Universidad Polit\u00e8cnica de Val\u00e8ncia, 46022 Valencia, Spain"],"raw_orcid":"https://orcid.org/0000-0001-9059-0128","affiliations":[{"raw_affiliation_string":"Departamento de Inform\u00e1tica de Sistemas y Computadores (DISCA), Universidad Polit\u00e8cnica de Val\u00e8ncia, 46022 Valencia, Spain","institution_ids":["https://openalex.org/I60053951"]},{"raw_affiliation_string":"Instituto Tecnol\u00f3gico de Inform\u00e1tica (ITI), Universidad Polit\u00e8cnica de Val\u00e8ncia, 46022 Valencia, Spain","institution_ids":["https://openalex.org/I4210134847","https://openalex.org/I60053951"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102811679","display_name":"Javier P\u00e9rez Soler","orcid":"https://orcid.org/0000-0002-4195-9491"},"institutions":[{"id":"https://openalex.org/I4210134847","display_name":"Centro Tecnol\u00f3gico de Investigaci\u00f3n, Desarrollo e Innovaci\u00f3n en tecnolog\u00edas de la Informaci\u00f3n y las Comunicaciones (TIC)","ror":"https://ror.org/02s69db58","country_code":"ES","type":"nonprofit","lineage":["https://openalex.org/I4210134847"]},{"id":"https://openalex.org/I60053951","display_name":"Universitat Polit\u00e8cnica de Val\u00e8ncia","ror":"https://ror.org/01460j859","country_code":"ES","type":"education","lineage":["https://openalex.org/I60053951"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Javier Perez-Soler","raw_affiliation_strings":["Instituto Tecnol\u00f3gico de Inform\u00e1tica (ITI), Universidad Polit\u00e8cnica de Val\u00e8ncia, 46022 Valencia, Spain"],"raw_orcid":"https://orcid.org/0000-0002-4195-9491","affiliations":[{"raw_affiliation_string":"Instituto Tecnol\u00f3gico de Inform\u00e1tica (ITI), Universidad Polit\u00e8cnica de Val\u00e8ncia, 46022 Valencia, Spain","institution_ids":["https://openalex.org/I4210134847","https://openalex.org/I60053951"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004778394","display_name":"Juan-Carlos P\u00e9rez-Cort\u00e9s","orcid":"https://orcid.org/0000-0001-6506-090X"},"institutions":[{"id":"https://openalex.org/I4210134847","display_name":"Centro Tecnol\u00f3gico de Investigaci\u00f3n, Desarrollo e Innovaci\u00f3n en tecnolog\u00edas de la Informaci\u00f3n y las Comunicaciones (TIC)","ror":"https://ror.org/02s69db58","country_code":"ES","type":"nonprofit","lineage":["https://openalex.org/I4210134847"]},{"id":"https://openalex.org/I60053951","display_name":"Universitat Polit\u00e8cnica de Val\u00e8ncia","ror":"https://ror.org/01460j859","country_code":"ES","type":"education","lineage":["https://openalex.org/I60053951"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"Juan-Carlos Perez-Cortes","raw_affiliation_strings":["Departamento de Inform\u00e1tica de Sistemas y Computadores (DISCA), Universidad Polit\u00e8cnica de Val\u00e8ncia, 46022 Valencia, Spain","Instituto Tecnol\u00f3gico de Inform\u00e1tica (ITI), Universidad Polit\u00e8cnica de Val\u00e8ncia, 46022 Valencia, Spain"],"raw_orcid":"https://orcid.org/0000-0001-6506-090X","affiliations":[{"raw_affiliation_string":"Departamento de Inform\u00e1tica de Sistemas y Computadores (DISCA), Universidad Polit\u00e8cnica de Val\u00e8ncia, 46022 Valencia, Spain","institution_ids":["https://openalex.org/I60053951"]},{"raw_affiliation_string":"Instituto Tecnol\u00f3gico de Inform\u00e1tica (ITI), Universidad Polit\u00e8cnica de Val\u00e8ncia, 46022 Valencia, Spain","institution_ids":["https://openalex.org/I4210134847","https://openalex.org/I60053951"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5042255597","display_name":"Jose-Luis Guardiola","orcid":"https://orcid.org/0000-0002-1100-4950"},"institutions":[{"id":"https://openalex.org/I4210134847","display_name":"Centro Tecnol\u00f3gico de Investigaci\u00f3n, Desarrollo e Innovaci\u00f3n en tecnolog\u00edas de la Informaci\u00f3n y las Comunicaciones (TIC)","ror":"https://ror.org/02s69db58","country_code":"ES","type":"nonprofit","lineage":["https://openalex.org/I4210134847"]},{"id":"https://openalex.org/I60053951","display_name":"Universitat Polit\u00e8cnica de Val\u00e8ncia","ror":"https://ror.org/01460j859","country_code":"ES","type":"education","lineage":["https://openalex.org/I60053951"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Jose-Luis Guardiola","raw_affiliation_strings":["Instituto Tecnol\u00f3gico de Inform\u00e1tica (ITI), Universidad Polit\u00e8cnica de Val\u00e8ncia, 46022 Valencia, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Instituto Tecnol\u00f3gico de Inform\u00e1tica (ITI), Universidad Polit\u00e8cnica de Val\u00e8ncia, 46022 Valencia, Spain","institution_ids":["https://openalex.org/I4210134847","https://openalex.org/I60053951"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5004778394","https://openalex.org/A5024704748"],"corresponding_institution_ids":["https://openalex.org/I4210134847","https://openalex.org/I60053951"],"apc_list":{"value":1600,"currency":"CHF","value_usd":1732},"apc_paid":{"value":1600,"currency":"CHF","value_usd":1732},"fwci":0.2936,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.51279907,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":95},"biblio":{"volume":"11","issue":"6","first_page":"84","last_page":"84"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10638","display_name":"Optical measurement and interference techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10638","display_name":"Optical measurement and interference techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10531","display_name":"Advanced Vision and Imaging","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12549","display_name":"Image and Object Detection Techniques","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/silhouette","display_name":"Silhouette","score":0.792182445526123},{"id":"https://openalex.org/keywords/projection","display_name":"Projection (relational algebra)","score":0.7005736231803894},{"id":"https://openalex.org/keywords/centroid","display_name":"Centroid","score":0.6789302825927734},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.6343035697937012},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6320135593414307},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5944370031356812},{"id":"https://openalex.org/keywords/calibration","display_name":"Calibration","score":0.5903066992759705},{"id":"https://openalex.org/keywords/orthographic-projection","display_name":"Orthographic projection","score":0.5027306079864502},{"id":"https://openalex.org/keywords/segmentation","display_name":"Segmentation","score":0.4990091323852539},{"id":"https://openalex.org/keywords/camera-resectioning","display_name":"Camera resectioning","score":0.470156192779541},{"id":"https://openalex.org/keywords/perspective","display_name":"Perspective (graphical)","score":0.4620835781097412},{"id":"https://openalex.org/keywords/simplicity","display_name":"Simplicity","score":0.4306719899177551},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.41273146867752075},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.36980414390563965},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.30883458256721497}],"concepts":[{"id":"https://openalex.org/C58103923","wikidata":"https://www.wikidata.org/wiki/Q2286025","display_name":"Silhouette","level":2,"score":0.792182445526123},{"id":"https://openalex.org/C57493831","wikidata":"https://www.wikidata.org/wiki/Q3134666","display_name":"Projection (relational algebra)","level":2,"score":0.7005736231803894},{"id":"https://openalex.org/C146599234","wikidata":"https://www.wikidata.org/wiki/Q511093","display_name":"Centroid","level":2,"score":0.6789302825927734},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.6343035697937012},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6320135593414307},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5944370031356812},{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.5903066992759705},{"id":"https://openalex.org/C175694140","wikidata":"https://www.wikidata.org/wiki/Q980329","display_name":"Orthographic projection","level":2,"score":0.5027306079864502},{"id":"https://openalex.org/C89600930","wikidata":"https://www.wikidata.org/wiki/Q1423946","display_name":"Segmentation","level":2,"score":0.4990091323852539},{"id":"https://openalex.org/C110898773","wikidata":"https://www.wikidata.org/wiki/Q2933935","display_name":"Camera resectioning","level":2,"score":0.470156192779541},{"id":"https://openalex.org/C12713177","wikidata":"https://www.wikidata.org/wiki/Q1900281","display_name":"Perspective (graphical)","level":2,"score":0.4620835781097412},{"id":"https://openalex.org/C2776372474","wikidata":"https://www.wikidata.org/wiki/Q508291","display_name":"Simplicity","level":2,"score":0.4306719899177551},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.41273146867752075},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.36980414390563965},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.30883458256721497},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3390/computers11060084","is_oa":true,"landing_page_url":"https://doi.org/10.3390/computers11060084","pdf_url":"https://www.mdpi.com/2073-431X/11/6/84/pdf?version=1653394816","source":{"id":"https://openalex.org/S4210228075","display_name":"Computers","issn_l":"2073-431X","issn":["2073-431X"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computers","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:9c0f2cc424af4aaab53703e47d6b929f","is_oa":true,"landing_page_url":"https://doaj.org/article/9c0f2cc424af4aaab53703e47d6b929f","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Computers, Vol 11, Iss 6, p 84 (2022)","raw_type":"article"},{"id":"pmh:oai:riunet.upv.es:10251/199669","is_oa":true,"landing_page_url":"http://hdl.handle.net/10251/199669","pdf_url":null,"source":{"id":"https://openalex.org/S4306400639","display_name":"RiuNet (Universitat Polit\u00e8cnica de Val\u00e8ncia)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I60053951","host_organization_name":"Universitat Polit\u00e8cnica de Val\u00e8ncia","host_organization_lineage":["https://openalex.org/I60053951"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"doi:10.3390/computers11060084","is_oa":true,"landing_page_url":"https://doi.org/10.3390/computers11060084","pdf_url":"https://www.mdpi.com/2073-431X/11/6/84/pdf?version=1653394816","source":{"id":"https://openalex.org/S4210228075","display_name":"Computers","issn_l":"2073-431X","issn":["2073-431X"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computers","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Sustainable cities and communities","score":0.5199999809265137,"id":"https://metadata.un.org/sdg/11"}],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":false},"content_urls":{"pdf":"https://content.openalex.org/works/W4281566362.pdf"},"referenced_works_count":13,"referenced_works":["https://openalex.org/W1266103554","https://openalex.org/W2002484140","https://openalex.org/W2019587472","https://openalex.org/W2119222995","https://openalex.org/W2124656530","https://openalex.org/W2129389525","https://openalex.org/W2143536583","https://openalex.org/W2162510086","https://openalex.org/W2167667767","https://openalex.org/W2465298262","https://openalex.org/W2889790822","https://openalex.org/W2902161925","https://openalex.org/W3033485024"],"related_works":["https://openalex.org/W1622964048","https://openalex.org/W30315714","https://openalex.org/W2368019753","https://openalex.org/W2333930193","https://openalex.org/W1965274140","https://openalex.org/W2737356002","https://openalex.org/W779885325","https://openalex.org/W2150972844","https://openalex.org/W2019992318","https://openalex.org/W92081101"],"abstract_inverted_index":{"Several":[0],"calibration":[1,6],"algorithms":[2,76,150],"use":[3,34],"spheres":[4,78],"as":[5],"tokens":[7,38],"because":[8,111],"of":[9,26,35,55,65,74,83,97,163,177],"the":[10,24,30,33,49,53,75,81,84,90,102,106,117,144,178],"simplicity":[11,25],"and":[12,46,136,165],"uniform":[13],"shape":[14],"that":[15,166],"a":[16,134],"sphere":[17,85,103,145],"presents":[18,168],"across":[19],"multiple":[20],"views,":[21],"along":[22],"with":[23,39,48,61,128],"its":[27,161],"construction.":[28],"Among":[29],"alternatives":[31],"are":[32,160,181],"complex":[36,43],"3D":[37],"reference":[40],"marks,":[41],"usually":[42],"to":[44,70,93,126,141,171],"build":[45],"analyze":[47],"required":[50],"accuracy;":[51],"or":[52],"search":[54],"common":[56],"features":[57],"in":[58],"scene":[59],"images,":[60],"this":[62,129,132],"task":[63],"being":[64],"high":[66],"complexity":[67],"too":[68],"due":[69],"perspective":[71],"changes.":[72],"Some":[73],"using":[77],"rely":[79],"on":[80,105],"estimation":[82],"center":[86,146],"projection":[87,99,147],"obtained":[88],"from":[89,101],"camera":[91],"images":[92,107],"proceed.":[94],"The":[95,153],"computation":[96],"these":[98,149],"points":[100],"silhouette":[104,118],"is":[108,151],"not":[109,114],"straightforward":[110],"it":[112,167],"does":[113],"match":[115],"exactly":[116],"centroid.":[119],"Thus,":[120],"several":[121],"methods":[122,159],"have":[123],"been":[124],"developed":[125],"cope":[127],"calculation.":[130],"In":[131],"work,":[133],"simple":[135],"fast":[137],"numerical":[138],"method":[139,180],"adapted":[140],"precisely":[142],"compute":[143],"for":[148],"presented.":[152],"benefits":[154],"over":[155],"other":[156],"similar":[157],"existing":[158],"ease":[162],"implementation":[164],"less":[169],"sensibility":[170],"segmentation":[172],"issues.":[173],"Other":[174],"possible":[175],"applications":[176],"proposed":[179],"presented":[182],"too.":[183]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1}],"updated_date":"2026-05-22T06:13:13.366637","created_date":"2022-05-27T00:00:00"}
